EDA‐based optimized global control for PV inverters in distribution grids

  1. Valizadeh, Hamed 1
  2. Cañadillas, David 2
  3. Guerrero‐Lemus, Ricardo 2
  4. Kleissl, Jan 1
  5. González‐Díaz, Benjamín 2
  1. 1 Center for Energy Research Department of Mechanical and Aerospace Engineering University of California, San Diego La Jolla California USA
  2. 2 Universidad de La Laguna
    info

    Universidad de La Laguna

    San Cristobal de La Laguna, España

    ROR https://ror.org/01r9z8p25

Revista:
IET Renewable Power Generation

ISSN: 1752-1416,  1752-1424

Any de publicació: 2021

Volum: 15

Número: 2

Pàgines: 382-396

Tipus: Article

DOI: 10.1049/RPG2.12031 GOOGLE SCHOLAR lock_openAccés obert editor

Altres publicacions en: IET Renewable Power Generation

Objectius de Desenvolupament Sostenible

Resum

Operating distribution grids is increasingly challenging due to the increasing penetration ofphotovoltaic systems. To address these challenges, modern photovoltaic inverters includefeatures for local control, which sometimes lead to suboptimal results. Improved commu-nication infrastructure and photovoltaic inverters favour global control strategies, whichreceive information from all the systems in the grid. An estimation of distribution algo-rithm is used to optimize a global control strategy that minimizes active power curtailmentand use of reactive power of the photovoltaic inverters, while maintaining voltage stabil-ity. Optimized global control outperforms every other local control evaluated in terms ofapparent energy used for control (9.9% less usage compared to the second best alternativein all scenarios studied) and ranks second in terms of voltage stability (with a 0.14% oftotal time outside the voltage limits). Two new indicators to compare control strategies areproposed, and optimized global control strategy ranks best for both efficiency index (0.98)and average apparent power use (0.48 kVA).

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